Yep, I bought one cheap that also would only boot to Windows 95. I thought it was due to corrupted files on the ancient hard disk. Turns out actually that the Dallas RTC chip battery died, and I guess the unit lost its original BIOS settings. I ended up manually configuring the various devices listed in device manager to not have any IRQ, memory resources or I/O range conflicts with anything else. Once I did this, I heard a click, and the remaining boards turned on. The analyzer program started automatically. Attached are some pictures of the settings, and the unit in action.
I took out the "computer" board and placed the Dallas chip with one with a removable battery, now it keeps time and no more "Press F1 to continue" message on boot. I never bothered to adjust anything in the BIOS besides the time.
I also copied the hard disk image and placed it onto a newer laptop hard drive I had laying around in case the old one dies. I used an IDE-SATA adapter. Much quieter!
Used it to see and adjust harmonic distortion on a HP 3310A I just got. This is my first spectrum analyzer. It's certainly overkill for anything I'll need it for.
Only "issue" now (last picture) is that I see a lot of noise down towards the lower end of the spectrum display, especially when on RF mode. Sometimes enough to cause the "overload" indicator to appear. Not sure if its normal or not. I just got a good deal on the internet for this thing and wanted to see if I could make it work.
-Aaron
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